THE repeal of laws that allowed offshore asylum seekers to receive medical help in Australia has disappointed the member for Indi.
However, Helen Haines says those supporting the detainees, including members of Rural Australians for Refugees, "should not give up".
A tearful Senator Lambie told the chamber she was backing the bill on the basis of "national security" but could not say what that involved.
Dr Haines said "we don't know what deal the government made to secure support for repealing this bill, it's not transparent".
"But what worries me most of all is that those who've sought our help remain in despair when they need urgent medical attention as determined by skilled doctors," she said.
Rural Australians for Refugees national executive member Marie Sellstrom, of Mansfield, was appalled the Senate vote occurred with the key detail unknown.
"I am shocked in a democratic country that there are secret deals done by politicians and the public does not know what they're voting on," Ms Sellstrom said.
This is a dark day not just for the Australian Parliament, but for the people who have been locked up in those offshore hellholes.— Richard Di Natale (@RichardDiNatale) December 4, 2019
Someone is lying about this secretive deal. The @Greens will work to find out what’s been negotiated. #Medevac#auspolpic.twitter.com/E4bzKYgyVb
"Why is it a secret, if there is a deal, or is this to save her (Senator Lambie's) skin?"
Senator Lambie told the chamber a deal was done, but the government's Upper House leader Senator Mathias Cormann and Prime Minister Scott Morrison denied a pact was made with the Apple Islander.
Former member for Indi Cathy McGowan, who voted for the medevac law in February, declined to comment on the "whats and why-fors" of Senator Lambie's decision.
"With the repeal of the medevac I'll be watching closely the government to see if it fulfills its duty of care and will play close attention to Papua New Guinea to how it happens," Ms McGowan said.
Border government MPs Sussan Ley and Bridget McKenzie declined to comment to The Border Mail about the revocation.
Dr Haines encouraged people to "get behind" Rural Australians for Refugees, "so it can continue to offer hope and care".
The group will stage a vigil outside Dr Haines' Wangaratta office from 5pm to 7pm on Friday.
Ms Sellstrom said her members had been liaising directly with asylum seekers brought to Australia who were now left in limbo after the repealing of medevac.